[opencms-dev] Load balancing

[Yves Glodt]

On Thursday 20 March 2008, Jordi Martí wrote:
> Alkacon has an OCEE module just for that. But of course, it is not
> open source. ;-))
>
> I've used OpenCMS the way you say, but having to sacrifice /
> implement in other way some functionalities as:
> 	- Indexes: indexes are built in filesystem. If one instance indexes
> a file, the other one won't do it, or that's what experience tells
> me. You should manually reindex in both machines through a external
> process. - FlexCache: if publishing happens in one machine, the other
> one will not know that a page has been published, and cache won't be
> invalidated. That's why I generally use a timeout based cache (cache
> property => "timeout=10").

where can this property be set?

thanks for your detailed information!
Yves

> 	- Config files: for example, if you import a module in one machine,
> the other file "opencms-modules.xml" in the other machine won't be
> modified. You could rsync both files or mount that directory or
> something like that.
>
> There's no problem with filesystem created JSP and images, because if
> one instance doesn't have it, it creates in on the fly, so there's no
> problem.
>
> I don't remember any more, but I guess there will be. It depends on
> what functionalities you use or want to use.
>
> I would be glad to hear from others what troubles they have and how
> they solve it.
>
>
>
> JORDI MARTÍ
> Email: jmarti AT theinit _dot_ com
> Skype ID: jmarti.theinit
>
>
>
>
>
>
> -----Mensaje original-----
> De: opencms-dev-bounces at opencms.org
> [mailto:opencms-dev-bounces at opencms.org] En nombre de Yves Glodt
> Enviado el: jueves, 20 de marzo de 2008 11:31
> Para: The OpenCms mailing list
> Asunto: [opencms-dev] Load balancing
>
> Hello,
>
> in my setup I have a hardware loadbalancer/failover device, which
> will balance
> requests to two physical servers running opencms.
>
> These 2 servers are 1:1 copies of each other, and they connect both
> to the *same* database (which provides failover through DRBD)
>
> I guess this is not a problem, to have 2 or more opencms-instances
> from different servers connecting to the same database, or is it ???
> :-)
>
> I would like to request come comments about this kind of setup...
> What other
>
> ways are good for providing balancing and failover
>
> Regards,
> Yves
>
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